CNMG 120408 GT9530 Wendeplatten - Tungaloy

Combining the GT9530 cermet grade, ISO rhombic geometry and a 0.8 mm corner radius, the insert provides improved surface finish and extended tool life for stable steel turning operations; order directly via Metav Werkzeuge or consult the technical team for application advice.

CNMG 120408 GT9530 — Turning indexable insert by Tungaloy

The CNMG120408 GT9530 is an ISO-format turning insert designed for finishing to light universal turning of steel, offering wear resistance and reproducible surface quality.

• Cermet GT9530 for wear-resistant finishing
• ISO rhombic CNMG120408, 80° cutting geometry
• 0.8 mm corner radius for superior surface quality
• Double-sided chipbreaker, cylindrical hole for secure mounting

Precise finishing through a wear-resistant coating and grade

The GT9530 grade is a coated cermet optimised for finishing and light universal turning of steel, delivering a balance between surface quality and longevity. The cermet composition combines fine-grain wear resistance with machining stability, which reduces flank wear under steady cutting conditions. With an emphasis on consistent surface finish rather than aggressive metal removal, this grade yields fewer reworks and a more predictable tool life. The design supports applications where dimensional fidelity and component appearance are priorities.

Clear compatibility and mounting details for reliable set-up

Compatibility with toolholders follows ISO standards and depends on shape, relief angle, tolerance class, fastening method, size and thickness. The rhombic CNMG form features an 80° cutting edge and a cylindrical hole, permitting secure clamping in a matching external holder or boring bar. The nominal thickness of 4.76 mm and the 12 mm nominal size must match the holder seat to ensure correct seating and repeatability. Where quick insert changes are required, verify the holder’s tolerance class and clamping hardware — correct matching minimises vibration and enhances repeatable performance.

Operational advantages and recommended machining scope

This insert is optimally suited for external and internal turning where a fine finish and longer tool life are required under stable, well-supported conditions. The double-sided chipbreaker allows reversible use of the cutting edges, improving economy in batch production. The 0° relief angle and 0.8 mm corner radius contribute to controlled cutting forces and an improved surface profile on turned parts. For light finishing passes in steel, this geometry offers a good compromise between edge strength and access to tighter radii, reducing the need for secondary finishing operations.

Practical selection and process guidance for consistent results

Choose the chipbreaker and grade according to workpiece stability, feed rate and desired surface quality; the GT9530 grade favours finishing feeds at moderate speeds for best life and appearance. The rhombic CNMG120408 form with its 80° approach gives solid edge support and is suitable for facing and profile turning where clearance and chip flow are critical. For secure inventory and traceability, refer to the manufacturer SKU TUN6998070 and merchant SKU 6998070-Tungaloy when reordering. If further machining parameters or trial recommendations are required, technical consultation can help to tune cutting data to the specific setup.

For application-specific advice or to order Tungaloy inserts such as the GT9530 grade, contact Metav Werkzeuge for expert consultation and fast availability.

Technical data

• Article number: 6998070
• Manufacturer SKU: TUN6998070
• Merchant SKU: 6998070-Tungaloy
• Model series: ISO-Drehwendeschneidplatten

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Relief angle: 0°
• Cutting angle: 80°
• Hole style: cylindrical hole

Special features

• Grade/coating: GT9530 (coated cermet)
• Material: carbide
• Plate form: rhombic (CNMG)
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Compatibility: ISO-form compatibility by shape, relief, tolerance class, fastening, size and thickness

FAQ

Which materials is this insert best suited for?
The CNMG120408 GT9530 insert is optimised for use on steel; the GT9530 coated cermet delivers wear resistance and a fine surface finish in stable turning operations.

Can the insert be used on internal and external turning applications?
Yes, the rhombic geometry and 80° cutting angle make the insert suitable for both external and internal turning, provided the holder and clamping meet ISO compatibility for size and thickness.

How does the double-sided chipbreaker affect productivity?
The double-sided chipbreaker allows both cutting edges to be used, improving economy and reducing tool change frequency in repetitive production with the Tungaloy CNMG insert (SKU 6998070-Tungaloy).

What mounting checks are necessary before use?
Ensure the holder matches the ISO CNMG seat, verify the 4.76 mm thickness and the cylindrical hole alignment, and use the correct fastening hardware to secure repeatable seating.

Is the GT9530 grade suitable for unstable or roughing conditions?
GT9530 is a finishing to light universal grade optimised for stable conditions; for heavy roughing or unstable setups, a tougher grade or different chipbreaker should be selected.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.